JPH05505690A - Method and device for preventing wild bird collisions in aircraft - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Method and device for preventing wild bird collisions in aircraft There is at least one light source, in which case the frequency of the flashes emitted is at least one cycle. Preventing wild bird collisions with aircraft by varying during cruise time It is about the method. and at least one light source consisting of a discharge lamp; Reduce the frequency of flashes (both have a control device that fluctuates during one cycle time) This invention relates to a device that prevents wild birds from colliding with aircraft.

European patent application No. 0236267A2 describes how to prevent such wild bird collisions. Methods and devices for this purpose are known. In European patent application 0236267A2 The method and apparatus proposed in At least one light source prevents wild birds from colliding with aircraft. . In this case, the frequency of the emitted flashes varies for at least one cycle time. It is designed to move. At that time, the frequency of flashes emitted is - times or several times. , increases continuously within the range of about 0.1 Hz to 3 Hz, and then maintains the maximum frequency. It is designed to be This device can be activated both when the aircraft takes off and when it lands. It is possible.

However, conventional devices have the following disadvantages. In other words, Regardless of the frequency of the flashes, the intensity of each flash is approximately equal and Therefore, as the frequency of flashes emitted increases, the light source Electricity must be supplied. Therefore, on the one hand, the dimensions of the power supply of the light source larger size, resulting in higher costs and larger space requirements. Is required.

On the other hand, there is a large loss due to heat generated by a large sequence frequency of flashes. A light source capable of dissipating power, i.e. a discharge lamp, is required, and as a result the light source is expensive. This makes it necessary to take up more space.

The present invention provides a simple, low cost, and low loss power field in aircraft. It is an object of the present invention to provide a method and device for preventing bird collisions.

The invention provides a device according to claim 1, in which at least one light source has a (A power supply consisting of one transformer and at least one capacitor) If the equipment is allocated and the frequency of the flashes emitted varies, the transformer The above problem is solved by outputting constant power.

At least one light source includes at least one transformer and at least one power converter. Assign the power supply consisting of the sensor and the frequency of the flashes emitted. It is advantageous for the transformer to output a constant power when the power is varied. Why This makes the supplied energy more efficient without limiting the operation of the device. In addition to making it possible to use the light source efficiently, the power supplied to the light source is almost constant. Therefore, it is possible to improve the structure of the transformer and light source in a lower cost and easier way to reduce the loss of output power. Can be made more compact, thereby saving space and weight It becomes possible to save.

The method for preventing wild bird collisions described in claim 5 is independent of the frequency of flashes emitted. The problem can be solved by supplying constant power to the light source. It has been solved and the same benefits can be obtained.

If the flash frequency is high and the flash energy is also large, the arc will be extinguished in a short period of time. It is well known that additional control devices for discharge lamps are required to ensure that.

If the power output of the transformer is constant, the energy of the flash increases as the flash frequency increases. rugy decreases. Therefore, additional control device is no longer required.

Assign an auxiliary transformer to the transformer, and place this auxiliary transformer in parallel with the light source. A flash of light is emitted by connecting a second capacitor located at If the frequency of This is an advantage. Thereby the reliability of operation and functionality of the device according to the invention certainty will be improved.

Further, the method according to claim 6 provides the light source with an auxiliary discharge starting voltage. Therefore, even if the frequency of flashes emitted is large, the arc of the light source is always carried out. This is to ensure that The same benefits can be obtained using this method. Ru.

The device according to claim 3 is particularly simple and inexpensive to manufacture and install, and It is characterized by high operational reliability.

One embodiment of a device for preventing wild bird strikes in aircraft is shown in the figure.

In the following, one embodiment of the invention will be described in detail in view of the method according to the invention.

Brief description of the drawing Figure 1 is a block circuit diagram showing a device for preventing wild bird collisions on aircraft. Figure 2 is a graph showing the voltage course in the light source (L) as a function of the frequency of flashes. It is.

The device of Figure 1 has a transformer (SW) whose connection to the power supply is not shown here. a first capacitor acting as a charge accumulator in parallel with its output A sensor (C1) is arranged. The output of the transformer (SW) is almost constant It is designed like this. The first electrode of the first capacitor (C1) is connected to the first die. Connected to the anode of the light source (L) through the electrode (Dl) so that it is electrically conductive. has been done. In this case, the light source (L) is a discharge lamp. Capacitor (C1) No. The second electrode is electrically conductively connected to the cathode of the light source (L).

The igniter (Z) is, on the one hand, electrically conductively connected to the anode of the light source (L). On the other hand, it is electrically conductively connected to the control device (ST). It is. Furthermore, the ignition device (Z) is electrically conductive so that the light source (L) It is connected to the ignition diameter (ZA) of The ignition device (Z) is controlled by the control device (ST). In response to the control, an ignition signal is generated, and this ignition signal is sent to the ignition diameter (ZA). , plays the role of starting the arc of the light source (L).

For example, when an aircraft takes off, this device can be activated automatically or manually to generate a flash. The frequency of light can be adjusted according to a predetermined period of time or other parameters. It is varied in accordance with the control by the controller. In other words, the frequency of the flashes emitted is 1 or ramp up to some maximum frequency during multiple cycle times.

Figure 2 shows the voltage profile at the anode of the light source (L) as a function of the frequency of flashes. FIG.

Given the first frequency (Fl), the voltage across the anode of the light source (L) is (UX), this voltage ensures the conduction of the light source (L). of the flash that is emitted If the second frequency is, for example, equivalent to about twice the frequency (F2), then Since the voltage transformer (SW) supplies constant power, the power applied to the anode of the light source (L) The voltage will be (UM). In this example, (UM) is required for the arc of the light source (L). selected to provide the lowest voltage possible.

Ensuring that the arcing of the light source (L) takes place even if the frequency is greater For this purpose, as shown in Fig. 1, an auxiliary transformer (H Place a second capacitor (C2) energized by W) Ta. Regardless of the storage state of the first capacitor (C1), the auxiliary transformer (HW ) to adjust the voltage of the second capacitor (C2) to a constant voltage. conduct. Thereby, the minimum anode voltage required to start the ignition process is applied to the light source (L). supply Therefore, a very simple and low-cost method can be used to incur large losses. Use small, compact and inexpensive components without generating forces ensures reliable ignition of the light source at all frequencies. Here, the second condenser At the connection between the transformer (C2) and the auxiliary transformer (HW), the second die Ord (D2) was placed. The first diode (Dl) reduces the voltage of the transformer (SW). As well as performing the coupling, the second diode (D2) is connected to the auxiliary transformer (HW) It plays the role of decoupling. In addition, the power supply for the auxiliary transformer (HW) is Not shown here.

The method and apparatus according to the invention also reduce the frequency from the maximum frequency to the minimum frequency. We have demonstrated that flashes can be generated reliably and effectively even during landings. secure.

Also, a particular advantage of the method and device according to the invention is that Reliable operation without the need for expensive power conditioning equipment It is something that can be done.

It is also advantageous to install two light sources (L) on the aircraft. these The light source (L) can be supplied by a common power supply and controlled by a common control device (ST). is possible. However, in order to improve system safety and operational reliability, It is also possible to use two separate devices for this purpose.

G.I. IG 2 abstract Method and device for preventing wild bird collisions on aircraft A method and apparatus for preventing at least one light source consisting of a discharge lamp and emitted from a control device that varies the frequency of the flash for at least one cycle time; At least one of the one light source, at least one transformer and one primary condenser If you assign a power supply consisting of , the transformer outputs constant power.

international search report international search report EP 910i734 S^　50826

Claims (6)

[Claims] 1. at least one light source consisting of a discharge lamp and the frequency of the flashes emitted is reduced; In aircraft with control equipment that fluctuates during one cycle time, In a device for preventing collision, The at least one light source includes at least one transformer (SW) and at least Assign a power supply consisting of one first capacitor (C1) and When the frequency of flashes is varied, the transformer (SW) outputs constant power. A device for preventing a wild bird from colliding with an aircraft, characterized by: 2. The auxiliary transformer (HW) is assigned to the transformer (SW), and the auxiliary transformer (HW) is assigned to the transformer (SW). one second condenser arranged in parallel with the light source (L) in the pressure device (HW); Device according to claim 1, characterized in that it is connected to a sensor (C2). 3. The first capacitor (C1) is arranged in parallel with the transformer (SW), Connecting the anode of the light source (L) to the first electrode of the first capacitor (C1) At the same time, the shadow of the light source (L) is placed on the second electrode of the first capacitor (C1). between the first capacitor (C1) and the anode of the light source (L). A first diode (D1) is arranged in the connection part and parallel to the light source (L). A second capacitor (C2) is arranged, and a supplementary capacitor is placed on the second capacitor (C2). The auxiliary voltage device (HW) is connected and the ignition device (Z) is connected to the light source (L) on the one hand. ) and the control device (ST) on the other hand, and the said point characterized in that a fire device (Z) is connected to the ignition pole (ZA) of the light source (L), 3. The device according to claim 2. 4. Connection between the second capacitor (C2) and the auxiliary transformer (HW) Claim characterized in that in the section a second diode (D2) is arranged. 3. The device according to 3. 5. Use at least one light source that emits flashes and reduce the frequency of flashes. Preventing wild bird collisions in aircraft, which vary during at least one cycle time In the method, characterized by supplying constant power to said light source, regardless of the frequency of flashes emitted; How to prevent wild birds from colliding with aircraft. 6. The method according to claim 5, characterized in that the light source is supplied with an auxiliary ignition voltage. Law.